Machining center



1. Machining center

View 1.1 is a front view of a machining center which has a door with a transparent window, showing my new design; view 1.2 is a back view thereof; view 1.3 is a top view thereof; view 1.4 is a bottom view thereof; view 1.5 is a right view thereof; and view 1.6 is a left view thereof; the portion indicated by the solid lines is a portion seeking for a design registration as a partial design, and the broken lines shown in the drawings represent portions of the machining center that form no part of the claimed design. 

CLAIM The ornamental design for a machining center, as shown and described. 